Murdr,
I'd do it that way except I don't know how to explain what they're doing wrong.
It's mainly a few things most of the time:
1) don't know how to control the stall hard enough. Kind of like learning to drift in a car.
2) don't know hot to aim. Ballistics, relative speed, angle, distance.
3) don't know how to read the other's E
4) don't know how to manage their E. "What do you mean energy??"
4.a) don't know when to or when they are slow(ing) down
4.b) don't know when to or when they are stay(ing) fast
4a,4b are very easy of course. But untill they know how to do at least the first two, if not three, how do you teach them complex stuff.. Like teaching topology to beginning arithmetic students, or teaching a black belt pattern to a 1 week white belt.
The thing I did the most for my first few weeks, and then a bit less for the first months, was drills offline for an hour or so.
And just telling them to go do that by themselves, I can almost hear their teeth grinding in boredom. To be there with them for hours at a time just becomes work, I dunno if I'm a jerk or what, but I'm just not good at having fun doing that.